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1. 发明专利

JP2006118649A Roller screw 有权
标题翻译：滚轮螺丝
公开(公告)号：JP2006118649A
公开(公告)日：2006-05-11
申请号：JP2004308541
申请日：2004-10-22
申请人： Thk Co Ltd , Thk株式会社
发明人： MICHIOKA HIDEKAZU , NIWA HIROSHI , YOSHIDA AKEMASA
IPC分类号： F16H25/22
CPC分类号： F16H2025/2271
摘要： PROBLEM TO BE SOLVED: To provide a roller screw capable of preventing clogging caused by meandering of a roller when the roller is moved from a no-load roller returning passage to a load roller rolling passage.
SOLUTION: The roller screw is provided with a screw shaft 5 having a spiral roller rolling groove 5a on an outer peripheral surface, a nut 6 having a spiral roller rolling groove 6a confronting the roller rolling groove 5a of the screw shaft 5 on an inner peripheral surface, a plurality of rollers 7 arranged in the load roller rolling passage 9 between the roller rolling groove 5a of the screw shaft 5 and the roller rolling groove 6a of the nut 6, and circulating members 12 and 13 having the no-load roller returning passage 10 connecting an end and the other end of the load roller rolling passage 9. Tapered parts 36a to 36d are formed on the no-load roller returning passage 10 connected to the load roller rolling passage 9 so that the distance between a pair of wall surfaces confronting with each other becomes narrower as going to the load roller rolling passage 9.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种当辊从空载辊返回通道移动到负载辊滚动通道时能够防止由于辊的曲折而引起的堵塞的滚子丝杠。解决方案：滚柱螺杆设有在外周面上具有螺旋滚子滚动槽5a的螺杆轴5，螺母6具有与螺杆轴5的滚子滚动槽5a对置的螺旋滚子滚动槽6a 内周面，设置在螺杆轴5的滚子滚动槽5a与螺母6的滚子滚动槽6a之间的加载滚筒滚动通道9中的多个辊7，以及具有无螺纹轴的循环构件12和13，连接装载辊滚动通道9的端部和另一端的装载辊返回通道10.锥形部分36a至36d形成在与负载辊滚动通道9连接的空载滚筒返回通道10上，相对于彼此面对的一对壁面在进入负载辊滚动通道9时变窄。（C）版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2001317552A ROLLING ELEMENT SPACER FOR ROLLING GUIDE DEVICE 失效
公开(公告)号：JP2001317552A
公开(公告)日：2001-11-16
申请号：JP2000133266
申请日：2000-05-02
申请人： THK CO LTD
发明人： NIWA HIROSHI , NISHIMURA KENTARO , ABE YASUYUKI , TAMURA SEIKO
IPC分类号： F16C19/20 , F16C29/06 , F16C33/37 , F16C33/372 , F16C33/66 , F16H25/22
摘要： PROBLEM TO BE SOLVED: To provide a rolling element spacer capable of stabilizing the position and orientation of a ball and the rolling element spacer in an infinite circulating passage by improving seating of the ball to a ball holding seat, and reducing sliding resistance acting on the ball, and effectively preventing the rolling element spacer from falling out between the balls. SOLUTION: A pair of members is used for a rolling guide device conducting relative continuous movements through an infinitely circulating ball line, and the rolling element spacer 5 is interposed between balls 2 adjacent to each other in the infinite circulating passage and circulated with the balls 2. The rolling element spacer 5 is provided with a pair of ball holding seats 50 which is formed in a concave spherical surface shape generally analogous to a spherical surface of the balls 2 and is slid with the balls 2. Around each ball holding seat, a falling-out preventive portion 52 is formed, which projects in an arranging direction of the balls 2 from an edge portion of the ball holding seats 50 and is kept in a non-contact state to the balls 2 seated in the ball holding seats 50.

3. 发明专利

JP2001280346A ROLLING ELEMENT SPACER FOR ROLLING GUIDE DEVICE 失效
公开(公告)号：JP2001280346A
公开(公告)日：2001-10-10
申请号：JP2000097027
申请日：2000-03-31
申请人： THK CO LTD
发明人： MICHIOKA HIDEKAZU , NISHIMURA KENTARO , ABE YASUYUKI , TAMURA SEIKO , NIWA HIROSHI
IPC分类号： F16H25/22 , F16C19/20 , F16C29/06 , F16C33/37 , F16C33/372
摘要： PROBLEM TO BE SOLVED: To provide a rolling element spacer device capable of preventing rolling element spacers arranged with balls in an endless circulating path from being laid down in the endless circulating path, and solving troubles such as the dropping from the endless circulating path and the inoperativeness of a rolling guide device. SOLUTION: This rolling element spacer 5 is used in the rolling guide device where a pair of members execute the relative continuous motion through an endless circulated ball array, located between the balls 2, 2 adjacent to each other in the endless circulating path, and circulated with the balls 2, and has a diagonal size A in the thickness direction, larger than an inner diameter ϕD of the endless circulating path 6.

4. 发明专利

JP2000145917A BALL SCREW 失效
公开(公告)号：JP2000145917A
公开(公告)日：2000-05-26
申请号：JP32106398
申请日：1998-11-11
申请人： THK CO LTD
发明人： TAKEDA RYUJI , NISHIDE TETSUHIRO , NIWA HIROSHI , HONMA MITSUAKI
IPC分类号： F16H25/22 , F16H25/24
摘要： PROBLEM TO BE SOLVED: To enhance a sealing property of the seal member of a ball screw. SOLUTION: A ball screw is provided with a screw shaft 11 having a ball rolling groove 11a on its outer periphery, a plurality of balls capable of rolling along the ball rolling groove 11a, a nut threadedly engaged through the balls with the screw shaft 11, and a seal member 21 provided at the shaft end of the nut. The inner periphery of the seal member 21 is provided with a spirally projected part 211 engaging with the ball rolling groove 11a. Part of the seal member 21 is peripherally split into a plurality of blocks by a plurality of slits extended to the midway of the seal member 21 from its one side 212. Some blocks are formed so that the inner peripheral edge 214c of the end face 214a may come into contact with the ball rolling groove 11a only. The other blocks are formed so that the inner peripheral edge 214c of the end face 214a may come into contact with the outer peripheral face 11b of the screw shaft 11 only.

5. 发明专利

JP2000145916A BALL SCREW 失效
公开(公告)号：JP2000145916A
公开(公告)日：2000-05-26
申请号：JP32378198
申请日：1998-11-13
申请人： THK CO LTD
发明人： TAKEDA RYUJI , NISHIDE TETSUHIRO , NIWA HIROSHI , HONMA MITSUAKI
IPC分类号： F16H25/24
摘要： PROBLEM TO BE SOLVED: To provide a ball screw having a seal member capable of simply adjusting contact pressure to the screw shaft of the seal member. SOLUTION: A seal member 2 is engaged with an engaging part 1b formed on both the ends of a nut 1, respectively. The outside diameter of the seal member 2 is formed into a taper shape gradually tapering toward the interior of the nut 1 in the axial direction. The inside diameter of the engaging part 1b is formed into a taper shape gradually tapering toward the interior of the nut 1 in the axial direction. Moving the seal member 2 in the axial direction of the nut 1 adjusts press force applied to the seal member 2 from the engaging part 1, nonstepwisely adjusting the fastening margin of the seal member 2. Thus, contact pressure to the screw shaft of the seal member 2 is simply adjusted just by moving the seal member 2 in the axial direction of the nut 1 without changing parts or the like.

6. 发明专利

JP2007198467A Ball screw 有权
标题翻译：球杆螺丝
公开(公告)号：JP2007198467A
公开(公告)日：2007-08-09
申请号：JP2006016371
申请日：2006-01-25
申请人： Thk Co Ltd , Thk株式会社
发明人： NIWA HIROSHI , YOSHIDA AKEMASA , MIYAHARA SOUSHI , KUBOTA SACHIHIRO , CHIKAMOTO KENSHO
IPC分类号： F16H25/22
CPC分类号： F16H25/2214
摘要： PROBLEM TO BE SOLVED: To provide a ball screw suppressing deformation of return pieces.
SOLUTION: A pair of the return pieces 41, 42 constituting a return pipe are provided with the pedestal parts 41d, 42d fixed to the outer wall surface of a nut 20, body parts 41a, 42a forming a no-load passage, and plate-like flange parts 41c, 42c provided along the end edge of the outer diameter side of the body parts 41a, 42a, and protruding toward the outer diameter side, respectively. The return pieces 41, 42 are provided with a foundation part 52 fixed by screwing and fastening to the outer wall face side of the nut 20 to sandwich the pedestal parts 41d, 42d between itself and the outer wall face of the nut 20, and return piece positioning members 50, 60 which come into plane contact with the plate-like flange parts 41c, 42c, and have supporting parts 51, 61 for positioning and supporting the return pieces 41, 42 by contacting along a boundary part between the plate-like flange parts 41c, 42c and the outer wall faces of the body parts 41a, 42a.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种抑制返回件变形的滚珠丝杠。解决方案：构成回流管的一对返回件41,42设置有固定在螺母20的外壁面上的基座部41d，42d，形成空载通路的主体部41a，42a，以及沿主体部41a，42a的外径侧的端缘分别设置并向外径侧突出的板状凸缘部41c，42c。返回片41,42设置有基部52，其通过螺纹固定而固定到螺母20的外壁面侧，以将基座部41d，42d夹在其本身与螺母20的外壁面之间，并返回与板状凸缘部41c，42c平面接触的片状定位构件50,60，并且具有用于通过沿板状凸缘部41c，42c之间的边界部分接触来定位和支撑返回片41,42的支撑部分51,61 凸缘部41c，42c以及主体部41a，42a的外壁面。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2007187322A Circulation component of ball screw, and ball screw 有权
标题翻译：球螺旋和球螺旋的循环组件
公开(公告)号：JP2007187322A
公开(公告)日：2007-07-26
申请号：JP2007103822
申请日：2007-04-11
申请人： Thk Co Ltd , Thk株式会社
发明人： MICHIOKA HIDEKAZU , ABE YASUYUKI , NIWA HIROSHI , IIDA KATSUYA , SUMINO TOSHIAKI , SHIRAI TAKEKI , SHOJI HIRONORI
IPC分类号： F16H25/22
CPC分类号： F16H25/2214
摘要： PROBLEM TO BE SOLVED: To provide a circulation component capable of being easily manufactured even with respect to the circulation component in which a pair of leg portions disposed at both ends of a central portion of the circulation component of the ball screw are inclined at prescribed angles in different directions from each other to the central portion corresponding to a lead angle of a screw shaft. SOLUTION: This circulation component 43 is composed of a pair of split bodies 40, 40 split into two only by a first split surface 41 and a second split surface 42. A step 45 is formed on the center in the longitudinal direction, of the central portion 43a by the first split surface 41 and the second split surface 42. Scooping-up portions 44 respectively disposed on tips of the pair of leg portions 43b of the circulation component 43 are also split by the first split surface 41 and the second split surface 42. That is, the scooping-up portions 44 are formed into the approximate semicircular shape on the pair of leg portions 43b, 43b of the split body 40, and constituted by combining the two split bodies 40, 40. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种循环部件，其能够相对于设置在滚珠丝杠的循环部件的中心部分的两端的一对腿部部分倾斜的循环部件而容易地制造以规定的角度在彼此不同的方向上对应于螺杆轴的引导角的中心部分。解决方案：该循环部件43由仅由第一分割面41和第二分割面42分成两部分的一对分割体40,40构成。在纵向方向的中心形成台阶45，第一分割面41和第二分割面42分别设置在中央部分43a的中心部分43a上。分别设置在循环部件43的一对腿部43b的尖端上的舀起部分44也被第一分割面41分开，第二分割面42.也就是说，舀取部44在分割体40的一对腿部43b，43b上形成为大致半圆形状，并且通过组合两个分割体40,40而构成。
版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2004084716A Rotary bearing 有权
公开(公告)号：JP2004084716A
公开(公告)日：2004-03-18
申请号：JP2002243550
申请日：2002-08-23
申请人： Thk Co Ltd , Thk株式会社
发明人： MICHIOKA HIDEKAZU , NIWA HIROSHI , NAGAOKA MAKOTO , TAMANO MASAHIKO
IPC分类号： F16C25/08 , F16C19/36 , F16C33/60
CPC分类号： F16C19/362 , F16C25/083 , F16C27/04 , F16C33/583 , F16C33/60
摘要： PROBLEM TO BE SOLVED: To provide a rotary bearing for prolonging the service life by absorbing excessive pressure load. SOLUTION: An outer ring split type rotary bearing has an absorbing member comprising a bolt 8, a nut 9 and a coil spring 10 to absorb the component of the pressure in the axial direction when a conical surface 6c of a ring member 6 to constitute an outer ring 3 is subjected to the pressure from a roller 4 caused by the expansion of an inner ring 2. COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2003065418A Rolling elements spacer in rolling guide device 审中-公开
标题翻译：滚动导向装置中滚动元件间距
公开(公告)号：JP2003065418A
公开(公告)日：2003-03-05
申请号：JP2001252514
申请日：2001-08-23
申请人： Thk Co Ltd , Thk株式会社
发明人： NIWA HIROSHI , NISHIMURA KENTARO , ABE YASUYUKI , TAMURA SEIKO
IPC分类号： F16H25/22 , F16H25/24
CPC分类号： F16C33/3706 , F16H25/2238
摘要： PROBLEM TO BE SOLVED: To provide a rolling elements spacer assuring a good seating performance of balls on each ball retaining seat capable of stabilizing the alignment of the balls with the spacer in an endless circulating path, reducing the slide contact resistance acting on the balls, and effectively preventing its slipping off from between balls.
SOLUTION: In the center of the obverse surface and reverse surface, a pair of approximately disc-shaped ball retaining seats 50 which are shaped in a convex spherical surface in approximatelion to the spherical surface of each ball 2 and whereto the balls 2 are in slide contact are provided, while around each ball retaining seat 50 a ring-shaped groove 51 is formed to serve as a sump for lubricating oil. Further, outside the groove 51, a ring-shaped slipoff preventive part 52 which protrudes from the rim of the seat 50 in the ball arrangement direction and contacts with the ball 2 seated on the seat 50 is formed.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供一种滚动元件隔离件，确保球在每个球保持座上的良好的就座性能，其能够稳定球体与环形循环路径中的间隔件的对准，减少作用在球上的滑动接触阻力，并有效地防止其从球之间滑落。解决方案：在正面和反面的中心，一对近似圆盘形的球保持座50，其形状为凸球面，与球2的球面接近并且球2滑动提供接触，而围绕每个球保持座50形成有环形槽51用作润滑油的贮槽。此外，在槽51的外侧形成有从座椅50的沿球排列方向的边缘突出并与座椅50上的球体2接触的环形防脱部52。

10. 发明专利

JP2002089651A ROLLING ELEMENT SPACER OF ROLLING GUIDE DEVICE 失效
公开(公告)号：JP2002089651A
公开(公告)日：2002-03-27
申请号：JP2000276443
申请日：2000-09-12
申请人： THK CO LTD
发明人： SHIRAI TAKEKI , NIWA HIROSHI , NISHIMURA KENTARO , ABE YASUYUKI , TAMURA SEIKO
IPC分类号： F16C19/20 , F16C29/06 , F16C31/06 , F16C33/37 , F16C33/374 , F16C33/66 , F16H25/22
摘要： PROBLEM TO BE SOLVED: To provide a rolling element spacer which has a rolling element well seated on a retaining seat whereby it is possible to stabilize alignment of the rolling element and spacer therefor in an infinite circulating passage and to reduce the slide contacting resistance acting on the rolling element. SOLUTION: The rolling element spacer 5 is used in a rolling guide device in which a pair of members make relative continuous movement through a string of balls circulating infinitely to be arranged as interposed between adjoining balls 2 in the infinite circulating passage and circulating together with balls 2, wherein the arrangement includes a pair of retaining seats 50 to admit slide contacting of each ball 2, and on the section perpendicular to the rotational center of the ball 2, the seat 50 and ball 2 contact only in two places near the ends of each retaining seat 50.

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